Evening Republican, Volume 21, Number 205, Rensselaer, Jasper County, 14 September 1917 — POPULAR SCIENCE [ARTICLE]

POPULAR SCIENCE

New York’s school of street cleaning has resulted in greatly improving the efficiency of the street workers. A periscopic device has been invented by which a Springfield rifle may be shot without exposing the marksman. The mile of England and the United States are of equal length, but every other country has its own idea of what a mile should be. Model houses constructed of cement, sand and rice husks are being erected by the Philippine health service. These houses can be built for $250. / Nuremburg has planned a number of underground tunnels to take care of the overflowing of the Pegnits river, which has heretofore been the cause of much loss annually. The orifice —of the whale’s ear is scarcely perceptible yet it is said that the whale’s hearing is so acute that a ship crossing its track half a mile distant will cause it to dive instantly.